Cria yml e templates para uso do pkgdown.

_pkgdown.yml

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+template:
+  params:
+    bootswatch: lumen
+  path: inst/templates

inst/templates/footer.html

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+<div class="copyright">
+  <p>{{#package}}Developed by {{{authors}}}.{{/package}}</p>
+</div>
+
+<div class="pkgdown">
+  <p>Site built with <a href="http://hadley.github.io/pkgdown/">pkgdown</a>.</p>
+</div>

inst/templates/head.html

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+<meta charset="utf-8">
+<meta http-equiv="X-UA-Compatible" content="IE=edge">
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+<title>{{{pagetitle}}} • {{#site}}{{title}}{{/site}}</title>
+
+<!-- jquery -->
+<script src="https://code.jquery.com/jquery-3.1.0.min.js" integrity="sha384-nrOSfDHtoPMzJHjVTdCopGqIqeYETSXhZDFyniQ8ZHcVy08QesyHcnOUpMpqnmWq" crossorigin="anonymous"></script>
+<!-- Bootstrap -->
+{{#yaml}}
+{{#bootswatch}}<link href="https://maxcdn.bootstrapcdn.com/bootswatch/3.3.7/{{.}}/bootstrap.min.css" rel="stylesheet" crossorigin="anonymous">{{/bootswatch}}
+{{^bootswatch}}<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">{{/bootswatch}}
+{{/yaml}}
+
+<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
+
+<!-- Font Awesome icons -->
+<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css" rel="stylesheet" integrity="sha384-T8Gy5hrqNKT+hzMclPo118YTQO6cYprQmhrYwIiQ/3axmI1hQomh7Ud2hPOy8SP1" crossorigin="anonymous">
+
+
+<!-- pkgdown -->
+<link href="{{#site}}{{root}}{{/site}}pkgdown.css" rel="stylesheet">
+<script src="{{#site}}{{root}}{{/site}}jquery.sticky-kit.min.js"></script>
+<script src="{{#site}}{{root}}{{/site}}pkgdown.js"></script>
+
+<!-- custom css -->
+<link href="{{#site}}{{root}}{{/site}}pkgdown-style.css" rel="stylesheet">
+
+<!-- mathjax -->
+<script src='https://mathjax.rstudio.com/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML'></script>
+<script type="text/x-mathjax-config">
+  MathJax.Hub.Config({
+      "HTML-CSS": {
+          scale: 85,
+          /* preferredFont: "STIX" /* padrão do MathJax */
+          availableFonts: ["TeX"], /* */
+      }
+  });
+</script>
+
+<!--[if lt IE 9]>
+<script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
+<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
+<![endif]-->
+
+{{#yaml}}{{#ganalytics}}
+<!-- Google analytics -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
+
+  ga('create', '{{.}}', 'auto');
+  ga('send', 'pageview');
+
+</script>
+
+{{/ganalytics}}
+{{/yaml}}